What it means
Decisions are made fast, answers on the spot, questions head-on. An argument fires you up, and long introductions irritate you. You learn better in action and in competition than from long reading.
The flip side is impatience: you interrupt the other person, words run ahead of thinking, and sharpness has to be explained afterward. A boring lecture switches your attention off within minutes.
This isn't about you if you think an answer over for a long time and speak carefully, choosing your words.
How to check it on yourself
Check it against your past — write your answer down before you look at the chart.
If your Mercury is in Aries
What should match. Recall your last three arguments. In at least two your answer was instant, before the other person had finished — and at least once you had to apologize for being sharp.
When it’s not about you. In two out of three you first hear the person out and answer thoughtfully — this isn't about you.
Your sign and house of Mercury — in the free calculation: build my chart. How we check the rest — the site’s method.